On June 24th at 5:38 in the morning, super high mountain collapsed in the Maoxian town of Diexi new mill village quietly, 10 million cubic meters of rocks pouring down, less than two minutes, the usual lively beautiful small village was completely buried in the tens of meters below the collapse caused by blocked river 2 kilometers, more than 40 households of more than 100 people were buried. As of 25 May 14, dug up the remains of 10 victims, 93 people are still lost. The morning of the 26 day, a giant with 8 propeller UAV in Maoxian landslide site rises slowly, without the need for remote operation, as long as the pre-set flight coordinates, the UAV can be in accordance with the coordinate automatic navigation flight route. The three dimensional laser scanning unmanned aerial vehicle (UAV) was transported to Maoxian 25 days and nights, and it was only 30 minutes after the whole scene was collapsed. Through 3D laser scanning, can be quickly collapsed on the mapping and modeling terrain, digital model of the disaster scene and the surrounding, forming a three-dimensional topographic map, and on the basis of earthwork estimates of the 3D model to dig out the rescue work, the command center can rely on the refined model determines the next bailout, so that more scientific the effective implementation of the rescue. See the rescue team expert Liu Jiting on the computer, in a three-dimensional simulation map, shows the reduction of the collapse of the scene and the surrounding environment of the panorama, "we can see the scene of the collapse of any small change on the computer screen, this change can reach centimeter level, help to predict subsidence, collapse phenomenon two." Liu Jiting said, "because the trees, the traditional remote sensing technology can not get the actual terrain under the trees, and the laser radar can automatically remove trees occupied space, the village was really like, in order to obtain accurate topographic data." The 3D images obtained by unmanned aerial vehicle scanning have made rescue organizations more scientific and effective. The widespread use of 3D scanning will also benefit mankind in more fields.相关的主题文章：